6... e7e5  7. d4f3  7... b8c6 A relatively rare move, as Black usually prefers to keep the flexibility of the knight, which can also go to d7. 8...Be7 is the most-played move. The move in the game, however, has already been tried by strong GMs specializing in the Najdorf, such as Firouzja and Nepomniachtchi. 8. f1c4  8... c8e6 